Cisco Systems Cisco 12008 manual Connecting Leads to the Circuit Breaker Alarm Terminal Block

Adding, Removing, or Replacing a DC-Input Power Supply

Figure 7-9 Connecting Leads to the Circuit Breaker Alarm Terminal Block

Klaxon	Light	48 VDC
COM		1A max

Alarm

terminalNC block

NO

Normally open; if circuit breaker inside power supply is tripped due to overcurrent condition, Klaxon would sound and light would flash

Equivalent circuit

inside power supply

COM

Normal state of	NC
circuit breaker
	NO

H7703

Step 15 Reinstall the plastic safety shield (see Figure 7-7) on the power supply faceplate by taking the following actions:

(a)Seat the shield over the standoffs on the power supply faceplate.

(b)Move the shield to the left and obliquely downward so that it registers properly on the three standoffs on the power supply faceplate.

(c)Tighten the knurled thumbscrew on the bottom left standoff to secure the shield to the power supply faceplate.

Step 16 Remove the tape from the main circuit breaker supplying source power to the new power supply (see Step 1).

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